کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4749711 1360610 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New data on the distribution of the Upper Carboniferous (Pennsylvanian) flexible crinoid Cibolocrinus (Crinoidea, Flexibilia)
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فسیل شناسی
پیش نمایش صفحه اول مقاله
New data on the distribution of the Upper Carboniferous (Pennsylvanian) flexible crinoid Cibolocrinus (Crinoidea, Flexibilia)
چکیده انگلیسی

Two new species of flexible crinoids of the genus Cibolocrinus (Crinoidea, Flexibilia) from the Upper Carboniferous of the Moscow Region are described: C. kutasovi (Moscovian Stage, Podolskian Regional Substage) and C. gerassimovi (Gzhelian Stage, Dobryatinian Regional Substage). The first species, C. kutasovi, belongs to a group with low cone shaped cups that first appeared in the Moscow Basin and then spread to the Midcontinent of North America. In one specimen of C. gerassimovi the smallest infrabasal plate is situated in the A ray, which is not typical for flexible crinoids. A poorly preserved crown of Cibolocrinus sp. from the Upper Carboniferous (Gzhelian Stage) of the Darvaz Ridge (western Pamir, central Tajikistan) is also described. The described specimens of Cibolocrinus from the Moscow Region and the Darvaz Ridge are the first reliable specimens of this genus described from Europe and Asia.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeoworld - Volume 24, Issue 4, December 2015, Pages 470–478
نویسندگان
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